Heat Transfer
If Prandtl number is greater than the Schmidt number, then the

thermal boundary layer lies inside the concentration boundary layer
thermal & concentration boundary layers are of equal thickness
concentration boundary layer lies inside the thermal boundary layer
none of the listed here

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
A process stream of dilute aqueous solution flowing at the rate of10 Kg.s⁻¹ is to be heated. Steam condensate at 95°C is available for heating purpose, also at a rate of 10 Kg.s⁻¹. A 1 - 1 shell and tube heat exchanger is available. The best arrangement is

Parallel flow with process stream on tube side
Counter flow with process stream on tube side
Parallel flow with process stream on shell side
Counter flow with process stream on shell side

ANSWER DOWNLOAD EXAMIANS APP